Fix bug on clonePosition() in prototype.js. #2669
Merged
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Description (*)
This is a known bug in prototype.js as reported here. But it is actually fixed in the master branch on 3 Jan 2016. The tag 1.7.3 was released on 22 September 2015, without the fix. This PR just copy the updated
clonePosition()
from the current master.Fixed Issues (if relevant)
Manual testing scenarios (*)
See example here to test. I have also tested the case provided in prototypejs's issue #248.